Lamp-stjppobtiito device



M. KOSSMANN.

LAMP SUPPORTING DEVICE.

Patented Dec. 30, 1919.

APPLICATION FILED JUNE 3' 1919.

INVENTOR 7Z4] Zfissmmva ATTORNEY MAX KOSSMANN, OF BROOKLYN, NEW YORK.

LAMP-SUPPORTING- DEVICE.

Specification of Letters Patent.

Patented Dec. 30, 1919.

Application filed June 3, 1919. Serial No. 301,541.

To all whom it may concern:

Be it known that I, MAX KossMANN, a citizen of the United States of America, residing at Brooklyn, Kings county, and State of New York, have invented certain new and useful Improvements in Lamp-Supporting Devices, of which the following is a full, clear, and exact description.

This invention relates to improvements in electric-lamp supports, to removably attach portable lamps, such as a reading lamp, to the back of a chair, bed or other supporting medium, one of the objects of the invention being to provide a lamp having a hollow base with a clamping device arranged to engage fiat or rounded supports of diflerent sizes, another object being to provide a clamp that can be folded or moved into the base when not in use so as to adapt the lamp to be placed upon a flat surface, such as a table, desk, or the like.

In the accompanying drawing, which forms part of this specification,

Figure 1 is a sectional view of a lamp, partly in elevation, provided with my improved clamp, a portion of the flat support eing also indicated in section;

Fig. 2 is a detail end view of the lamp illustrating the clamp moved into the base; and

Figs. 3 and 4B are fragmentary sectional diagrammatic views illustrating the lamp attached to rounded supports of different sizes.

My improved clamp consists of a yieldable arm 5 pivotally secured at one end thereof to a swivel or pivotal bracket 6, the bracket and arm being pivotally connected by a rivet 7 (in this instance), and the bracket being secured by a nut 8 to the bolt 9 which secures the socket carrier 10 to the base 11,

an additional bolt and nut 12 being also employed to secure the bracket 10 to the base 11. The arm 5 is of a sinuous formation to provide a plurality of recesses 13 and 11 of different sizes, the larger recess terminating in a hook 15. The arm 5 is preferably covered by a sheathing l6 of rubber or the like to prevent the arm fromscratching the support to which the lamp is applied.

When the lamp is attached to the flat back of a chair (for instance) indicated by 17 in Fig. 1, the hook 15 and convexed portion 18 of the arm will be utilized to engage the back of "the chair or other fiat support. Should the lamp be applied toa relatively small rounded support indicated by 19 in F ig, 3, the small recess or concavity 13 will be utilized. To attach the lamp to a larger rounded support, indicated by 20 in Fig. 4;, th recess or concavity 14 will be utilized. In any event the tension of the arm 5 will be sufficient to firmly secure the lamp to the support.

When the lamp is not in use the bracket 6 will be moved upon its pivot, the bolt 9, until arm 5, at the end 15, clears the edge of the base 11, whereupon the arm can be moved into said base and be concealed.

The bracket 6 is pivotally secured to the base 11 in order that the lamp as a whole can be adjusted after the arm has been caused to engage a support. Thus, even after arm 5 has been applied to a support, the lamp can be rotatably adjusted.

Having now described my invention, what I claim is:

l. The combination of a hollow base for a lamp, a bracket pivotally secured at one end thereof within the base, and an inherently yieldable clamping arm pivotally secured to the free end of said bracket, said arm being formed to provide a plurality of support engaging recesses of different sizes.

2. In combination, a bas for a lamp, an inherently yieldable clamping arm carried thereby, said arm being sinuous to provide a plurality of recesses of difierent sizes to engage supports of different diameters, a convex projection intermediate the recesses, and a hook at the free nd of the arm, said hook and convex projection being arranged to cooperate one with the other to secure the base to a flat surface.

Signed at New York city, N. Y., this 29 day of May, 1919.

- MAX KOSSMANN. Witnesses MAURICE BLOCK,

EDWARD A. JARVIS, 

